Looking for Opportunities in Lighting. Tom Coughlin Program Manager Commercial Lighting

Transcription

1 Looking for Opportunities in Lighting Tom Coughlin Program Manager Commercial Lighting

2 Looking for Opportunities simple retrofits Lamp and Ballast Replacement Take a 3 lamp T-12 system 103W 3 lamp standard T-8 system 88W 15 watts saved 3 lamp High Performance T-8 system 73W 30 watts saved

3 Lighting the lamps

4 Lighting the lamps Fluorescent lamps described by diameter T-12-8/12 th of an inch T-8 8/8 th of and inch T-8 5/8 th of an inch Color rendering index (CRI) above 80 is good Color Temperature 2100 deg K to 3600 deg K is warm white Initial and mean lumens Lumen maintenance factor Efficacy measure of efficiency lumens per watt.

5 Lighting the lamps Fluorescent lamps described by a code, some examples F40T12CWES - 34W T-12 energy saving cool white F32T W T8 w/ a CRI of >80 and a 4100 degree K color temp

6 Lighting the ballasts Applies power to start a lamp then maintains current Magnetic ballasts (inductive ballasts) Electronic ballast Run at a higher frequency (20KHz) and have electronics to control starting features and maintain current Greater efficiency

7 Lighting the ballasts Different types of electronic ballasts Rapid Start Least efficient being phased out Instant Start - Most Efficient Program Rapid Start Good where occupancy controls are used

8 High Performance Lamps and Ballasts What is a High Performance T8 System Definition established by the Consortium for Energy Efficiency High ballast efficacy factor Lamps that are high efficacy lumens per watt CRI>80 Higher initial and mean lumens (3100 initial, 2900 mean) Higher lumen maintenance factor (> 94%) Longer life rated at >24,000 hours Go to for more information. Information on low wattage T8 systems can be found there as well (25W and 28W T8 systems

9 Upgrade to an efficient fixture What is a high efficient troffer Looks like the same as a non- efficient fixture Constructed to get more of the light from the lamp into the space Increased uniformity and comfort Less watts typically fewer lamps to replace

10 Upgrade to an efficient fixture fixture options Prismatic lensed troffer >83% Parabolic > 75% or >80% to meet NY s new construction code So called basket fixture and 2x2 prismatic and parabolic >70%

11 Upgrade to an efficient fixture fixture options Direct indirect pendant fixture > 80% mostly for new construction Low Glare high performance fluorescent troffer >85% Image from Lithonia Lighting Image from Focal Point

12 What s wrong with this design?

13 Lighting 201 Lighting design considerations Design for uniformity and less contrast on walls, ceilings and work surfaces Reduce glare Proper light levels over lighted spaces are as bad as under lit spaces A high efficient fixture with thoughtful layout actual helps to accommodate these attributes.

14 High Performance T8 Troffer Image from Lithonia Lighting

15 Low Glare High Performance Troffer Image from Ledalite

16 Direct / Indirect Pendent Lighting

17 Industrial Lighting High Intensity Discharge High Intensity Fluorescent

18 Lighting 301 High Intensity Discharge Image from USDOE Energy Efficiency and Renewable Energy

19 Lighting 301 High Intensity Discharge Mercury Vapor Old technology Metal Halide Good color rendering High Pressure Sodium More efficient lower color rendering Low Pressure Sodium Most efficient but extremely poor color rendering Image from USDOE Energy Efficiency and Renewable Energy

20 Lighting 301 High Intensity Discharge Image from the Mass Turnpike Authority

21 Looking for Opportunities - High Bay Lighting High Intensity Fluorescent Better Color Rendering More Efficient Able to shut off lights when space is not being used Occupancy controls can be used.

22 High Intensity Fluorescent

23 Warehouses

24 Gymnasiums

25 Gymnasiums

26 Skating Rinks

27 Lighting Controls Occupancy sensors Dual mode ultrasonic and infrared or sound and infrared Adjustments typically sensitivity and delay Hi-low controls (best with HID fixtures) Daylight Dimming Controls Perimeter fluorescent fixtures Areas with skylights (especially high bay applications with HIF fixtures)

28 LED Reach in refrigerators Image by GE Image by Hussman

29 LED Lighting- Down Lights Image by Cooper Lightng - Halo Image by Cooper Lightng - CREE

30 LED Lighting- Parking Garages and Industry Image by BetaLED

31 THANK-YOU